Tullow's Hyedua-2 appraisal well flows oil

The Hyedua-2 appraisal well tested 16,750 b/d of oil and 21 MMcfd of associated natural gas from Ghana's Jubilee field and eventually could produce 20,000 b/d for operator Tullow Oil PLC.

Uchenna Izundu
International Editor

LONDON, Jan. 16 -- The Hyedua-2 appraisal well tested 16,750 b/d of oil and 21 MMcfd of associated natural gas from Ghana's Jubilee field and eventually could produce 20,000 b/d for operator Tullow Oil PLC.

Jubilee is a fast track development scheduled to start production in the first half of 2010.

Aidan Heavey, chief executive of Tullow described Jubilee as a "world class reservoir." The company will suspend the well and later complete it as a production well.

Three flow tests demonstrated good reservoir connectivity after the well reached a TD of 3,663 m. It was drilled on the Deepwater Tano license using the Blackford Dolphin rig in 1,246 m of water. A 41 m section of reservoir sandstone produced 37° gravity oil through a 88/64-in. choke with a tubing head pressure of 1,380 psi.

Hyedua-2 is on the north-west flank of Jubilee. "The excellent reservoir properties measured during this flow test are expected to be even better in the core area of the field," Tullow said.

Stable oil and gas flow rates were maintained throughout the tests and the pressure data indicates it is connected to a large pore volume. The company is analyzing this data in planning production and injection wells for the first phase of Jubilee's development.

Tullow operates the Deepwater Tano license with a 49.95% stake. Other partners include Kosmos Energy 18%, Anadarko Petroleum Corp. 18%, Sabre Oil & Gas 4.05%, and the Ghana National Petroleum Corp. with a 10% carried interest. Tullow is also the unit operator of the Jubilee field.

Contact Uchenna Izundu at uchennai@pennwell.com.

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